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From "Karthik Kambatla (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-1521) Mark appropriate methods of ApplicationClientProtocol, ResourceManagerAdminist, ApplicationMasterProtocol and ResourceTracker with the idempotent annotation
Date Sat, 21 Dec 2013 05:00:11 GMT

    [ https://issues.apache.org/jira/browse/YARN-1521?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13854789#comment-13854789
] 

Karthik Kambatla commented on YARN-1521:
----------------------------------------

An error in the log corresponding to the NM not being able to connect to Standby should show
up, but subsequently it should connect to the Active in the next attempt. If not, I am afraid
this could be the bug that I identified and posted an addendum patch on YARN-1028. 

[~xgong], are you setting yarn.client.failover-max-attempts? If not, can you set it to slightly
larger value (~ 15) and retry? 

> Mark appropriate methods of ApplicationClientProtocol, ResourceManagerAdminist, ApplicationMasterProtocol
and ResourceTracker with the idempotent annotation
> ------------------------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: YARN-1521
>                 URL: https://issues.apache.org/jira/browse/YARN-1521
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>            Reporter: Xuan Gong
>            Assignee: Xuan Gong
>
> After YARN-1028, we add the automatically failover into RMProxy. This JIRA is to identify
whether we need to add idempotent annotation and which methods can be marked as idempotent.



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